glengarry-bonnet
Glen*gar"ry, n., or Glen*gar"ry bon"net. [Name of a valley in Scotland.] Defn: A kind of Highland Scotch cap for men, with straight sides and a hollow top sloping to the back, where it is parted and held together by ribbons or strings. The long silk streamers of his Glengarry bonnet. L. Hutton.